From: Julien Grall <julien.grall@gmail.com>
To: "Roger Pau Monné" <roger.pau@citrix.com>
Cc: Juergen Gross <jgross@suse.com>,
Stefano Stabellini <sstabellini@kernel.org>,
Andrew Cooper <Andrew.Cooper3@citrix.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Julien Grall <julien.grall@arm.com>,
Jan Beulich <JBeulich@suse.com>,
xen-devel <xen-devel@lists.xenproject.org>,
Boris Ostrovsky <boris.ostrovsky@oracle.com>,
Dave P Martin <dave.martin@arm.com>
Subject: Re: xen/evtchn and forced threaded irq
Date: Thu, 21 Feb 2019 08:38:39 +0000 [thread overview]
Message-ID: <CAF3u54Ct7nBjoLw9Vzb=aZVu=N5Ccp5_k6GxLo_ZSA=YCsco6A@mail.gmail.com> (raw)
In-Reply-To: <20190221080752.zy2qlzb4vi7tbu3p@Air-de-Roger>
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Hi Roger,
On Thu, 21 Feb 2019, 08:08 Roger Pau Monné, <roger.pau@citrix.com> wrote:
> FWIW, you can also mask the interrupt while waiting for the thread to
> execute the interrupt handler. Ie:
>
Thank you for providing steps, however where would the masking be done? By
the irqchip or a custom solution?
> 1. Interrupt injected
> 2. Execute guest event channel callback
> 3. Scan for pending interrupts
> 4. Mask interrupt
> 5. Clear pending field
> 6. Queue threaded handler
> 7. Go to 3 until all interrupts are drained
> [...]
> 8. Execute interrupt handler in thread
> 9. Unmask interrupt
>
> That should prevent you from stacking interrupts?
>
> Roger.
>
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next prev parent reply other threads:[~2019-02-21 8:38 UTC|newest]
Thread overview: 63+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-19 17:31 xen/evtchn and forced threaded irq Julien Grall
2019-02-20 0:02 ` Boris Ostrovsky
2019-02-20 14:15 ` Julien Grall
2019-02-20 14:15 ` Julien Grall
2019-02-20 17:07 ` Boris Ostrovsky
2019-02-20 18:05 ` Julien Grall
2019-02-20 20:04 ` Boris Ostrovsky
2019-02-20 20:46 ` Julien Grall
2019-02-20 21:46 ` Boris Ostrovsky
2019-02-20 21:46 ` Boris Ostrovsky
2019-02-20 22:03 ` Julien Grall
2019-02-21 8:07 ` Roger Pau Monné
2019-02-21 8:07 ` [Xen-devel] " Roger Pau Monné
2019-02-21 8:38 ` Julien Grall [this message]
2019-02-21 8:52 ` Juergen Gross
2019-02-21 8:52 ` Juergen Gross
2019-02-21 9:14 ` Roger Pau Monné
2019-02-21 9:14 ` [Xen-devel] " Roger Pau Monné
2019-02-21 20:46 ` Julien Grall
2019-02-21 20:46 ` Julien Grall
2020-04-27 23:20 ` [Xen-devel] " Stefano Stabellini
2020-04-27 23:20 ` Stefano Stabellini
2019-02-22 11:44 ` Jan Beulich
2019-02-22 11:44 ` Jan Beulich
2019-02-20 22:03 ` Julien Grall
2019-02-22 12:38 ` Oleksandr Andrushchenko
2019-02-22 12:38 ` [Xen-devel] " Oleksandr Andrushchenko
2019-02-22 13:33 ` Julien Grall
2019-02-25 13:24 ` Oleksandr Andrushchenko
2019-02-25 13:24 ` [Xen-devel] " Oleksandr Andrushchenko
2019-02-25 13:55 ` Julien Grall
2019-02-25 13:55 ` [Xen-devel] " Julien Grall
2019-02-25 14:08 ` Oleksandr Andrushchenko
2019-02-25 14:08 ` [Xen-devel] " Oleksandr Andrushchenko
2019-02-25 15:26 ` Julien Grall
2019-02-25 15:26 ` [Xen-devel] " Julien Grall
2019-02-26 9:14 ` Roger Pau Monné
2019-02-26 9:14 ` [Xen-devel] " Roger Pau Monné
2019-02-26 9:30 ` Andrew Cooper
2019-02-26 9:30 ` [Xen-devel] " Andrew Cooper
2019-02-26 9:44 ` Roger Pau Monné
2019-02-26 9:44 ` [Xen-devel] " Roger Pau Monné
2019-02-26 10:03 ` Julien Grall
2019-02-26 10:03 ` [Xen-devel] " Julien Grall
2019-02-26 10:17 ` Roger Pau Monné
2019-02-26 10:17 ` [Xen-devel] " Roger Pau Monné
2019-02-26 10:26 ` Julien Grall
2019-02-26 10:26 ` [Xen-devel] " Julien Grall
2019-02-26 11:02 ` Roger Pau Monné
2019-02-26 11:02 ` [Xen-devel] " Roger Pau Monné
2019-02-27 11:09 ` Julien Grall
2019-02-27 11:09 ` [Xen-devel] " Julien Grall
2019-02-26 9:45 ` Paul Durrant
2019-02-26 9:45 ` Paul Durrant
2019-02-22 13:33 ` Julien Grall
2019-02-20 20:46 ` Julien Grall
2019-02-20 20:04 ` Boris Ostrovsky
2019-02-20 18:05 ` Julien Grall
2019-02-20 17:07 ` Boris Ostrovsky
2019-02-20 0:02 ` Boris Ostrovsky
2019-02-21 8:17 ` Juergen Gross
2019-02-21 8:17 ` Juergen Gross
-- strict thread matches above, loose matches on Subject: below --
2019-02-19 17:31 Julien Grall
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